How should the microcomputer control loop stiffness tester operate? -Huaqiang Electronic Network

Single chip microcomputer STM32L151CCU6

Photocoupler

The Microcomputer-Controlled Loop Stiffness Testing Machine is a cutting-edge, fully automated system designed for precise and efficient material testing. This advanced device integrates computer-based control to display real-time experimental data and test curves on the screen, while an external printer can generate detailed reports at the end of each test.

The main structure of the machine features a dual-space door design, where the upper space is used for tensile testing, and the lower space is dedicated to compression and bending tests. The beam can be smoothly raised and lowered, offering flexible operation. The transmission system uses an arc synchronous belt and screw drive, ensuring stable performance with minimal noise. The specially designed synchronous belt reduction system combined with precision ball screw technology enables smooth, gapless movement of the moving beam, enhancing overall accuracy and reliability.

Electrical Measurement and Control System of the Microcomputer-Controlled Loop Stiffness Testing Machine:

(1) Equipped with a Panasonic AC servo drive and motor, this system delivers high stability and reliability, featuring built-in protection against overcurrent, overvoltage, overspeed, and overload. It supports a speed ratio of up to 1:100,000, making it ideal for high-precision applications.

(2) The system includes multiple safety functions such as overload, overcurrent, overvoltage, displacement limits, and emergency stop, ensuring safe and controlled operation during all test procedures.

(3) The integrated controller allows for closed-loop control of critical parameters like test force, sample deformation, and beam displacement. It supports various control modes, including constant force, constant displacement, constant strain, and constant deformation cycles, with seamless switching between them.

(4) After the test, the machine can automatically or manually return to the initial position at high speed, improving efficiency and reducing downtime.

(5) The system offers automatic gear shifting, zero adjustment, calibration, and saving of physical zero and gain settings, eliminating the need for manual analog adjustments. The highly integrated control circuit ensures accurate and consistent performance.

(6) The electrical control system adheres to international standards and meets national requirements for testing machines. It has strong anti-interference capabilities, ensuring the stability of the controller and the accuracy of the test results.

(7) A network interface is available for data transmission, storage, printing, and remote access. It can connect to internal company LANs or the Internet, enabling easy data sharing and remote monitoring.